Optical image capturing system

ABSTRACT

A five-piece optical lens for capturing image and a five-piece optical module for capturing image, along the optical axis in order from an object side to an image side, include a first lens with positive refractive power having an object-side surface which can be convex; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power; and a fifth lens which can have negative refractive power, wherein an image-side surface thereof can be concave, and wherein at least one surface of the fifth lens has an inflection point and both surfaces of each of the five lenses are aspheric whereby the optical lens can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates generally to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of ordinary photographingcamera is commonly selected from charge coupled device (CCD) orcomplementary metal-oxide semiconductor sensor (CMOS Sensor). Inaddition, as advanced semiconductor manufacturing technology enables theminimization of pixel size of the image sensing device, the developmentof the optical image capturing system towards the field of high pixels.Therefore, the requirement for high imaging quality is rapidly raised.

The conventional optical system of the portable electronic deviceusually has a three or four-piece lens. However, the optical system isasked to take pictures in a dark environment, in other words, theoptical system is asked to have a large aperture. An optical system withlarge aperture usually has several problems, such as large aberration,poor image quality at periphery of the image, and hard to manufacture.In addition, an optical system of wide-angle usually has largedistortion. Therefore, the conventional optical system provides highoptical performance as required.

It is an important issue to increase the quantity of light entering thelens and the angle of field of the lens. In addition, the modern lens isalso asked to have several characters, including high pixels, high imagequality, small in size, and high optical performance.

SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces offive-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase thequantity of incoming light of the optical image capturing system, and toimprove imaging quality for image formation, so as to be applied tominimized electronic products.

The term and its definition to the lens parameter in the embodiment ofthe present are shown as below for further reference.

The lens parameter related to a length or a height in the lens element:

A height for image formation of the optical image capturing system isdenoted by HOI. A height of the optical image capturing system isdenoted by HOS. A distance from the object-side surface of the firstlens element to the image-side surface of the fifth lens element isdenoted by InTL. A distance from the image-side surface of the fifthlens to the image plane is denoted by InB. InTL+InB=HOS. A distance fromthe first lens element to the second lens element is denoted by IN12(instance). A central thickness of the first lens element of the opticalimage capturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens element in the optical image capturingsystem is denoted by NA1 (instance). A refractive index of the firstlens element is denoted by Nd1 (instance).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens

An entrance pupil diameter of the optical image capturing system isdenoted by HEP.

The lens parameter related to a depth of the lens shape

A distance in parallel with an optical axis from a maximum effectivesemi diameter position to an axial point on the object-side surface ofthe fifth lens is denoted by InRS51 (instance). A distance in parallelwith an optical axis from a maximum effective semi diameter position toan axial point on the image-side surface of the fifth lens is denoted byInRS52 (instance).

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. To follow the past, a distance perpendicular to the optical axisbetween a critical point C41 on the object-side surface of the fourthlens and the optical axis is HVT41 (instance). A distance perpendicularto the optical axis between a critical point C42 on the image-sidesurface of the fourth lens and the optical axis is HVT42 (instance). Adistance perpendicular to the optical axis between a critical point C51on the object-side surface of the fifth lens and the optical axis isHVT51 (instance). A distance perpendicular to the optical axis between acritical point C52 on the image-side surface of the fifth lens and theoptical axis is HVT52 (instance). The object-side surface of the fifthlens has one inflection point IF511 which is nearest to the opticalaxis, and the sinkage value of the inflection point IF511 is denoted bySGI511. A distance perpendicular to the optical axis between theinflection point IF511 and the optical axis is HIF511 (instance). Theimage-side surface of the fifth lens has one inflection point IF521which is nearest to the optical axis, and the sinkage value of theinflection point IF521 is denoted by SGI521 (instance). A distanceperpendicular to the optical axis between the inflection point IF521 andthe optical axis is HIF521 (instance). The object-side surface of thefifth lens has one inflection point IF512 which is the second nearest tothe optical axis, and the sinkage value of the inflection point IF512 isdenoted by SGI512 (instance). A distance perpendicular to the opticalaxis between the inflection point IF512 and the optical axis is HIF512(instance). The image-side surface of the fifth lens has one inflectionpoint IF522 which is the second nearest to the optical axis, and thesinkage value of the inflection point IF522 is denoted by SGI522(instance). A distance perpendicular to the optical axis between theinflection point IF522 and the optical axis is HIF522 (instance).

The lens element parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-|00% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

The present invention provides an optical image capturing system, inwhich the fifth lens is provided with an inflection point at theobject-side surface or at the image-side surface to adjust the incidentangle of each view field and modify the ODT and the TDT. In addition,the surfaces of the fifth lens are capable of modifying the optical pathto improve the imaging quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, and a fifth lensin order along an optical axis from an object side to an image side. Thefirst lens has positive refractive power, and the fifth lens hasrefractive power. Both the object-side surface and the image-sidesurface of the fifth lens are aspheric surfaces. The optical imagecapturing system satisfies:

1.2≦f/HEP≦2.8 and 0.5≦HOS/f≦3.0;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; andHOS is a distance in parallel with the optical axis between anobject-side surface, which face the object side, of the first lens andthe image plane.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, and a fifth lens in order along an optical axis from an objectside to an image side. The first lens has positive refractive power, andboth the object-side surface and the image-side surface thereof areaspheric surfaces. The second lens has negative refractive power, andthe third and the fourth lenses have refractive power. The fifth lenshas refractive power, and both an object-side surface and an image-sidesurface thereof are aspheric surfaces. The optical image capturingsystem satisfies:

1.2≦f/HEP≦2.8; 0.5≦HOS/f≦3.0; 0.4≦|tan(HAF)|≦3.0; |TDT|≦60%; and|ODT|≦50%;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; and ODT is an optical distortion.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, a fourthlens, and a fifth lens in order along an optical axis from an objectside to an image side. At least two of these five lenses have at leastan inflection point on a side thereof respectively. The first lens haspositive refractive power, and both an object-side surface and animage-side surface thereof are aspheric surfaces. The second and thethird lens have refractive power, and the fourth lens has negativerefractive power. The fifth lens has negative refractive power, whereinan image-side surface thereof has at least an inflection point, and bothan object-side surface and the image side surface thereof are asphericsurfaces. The optical image capturing system satisfies:

1.2≦f/HEP≦2.8; 0.5≦HOS/f≦3.0; 0.4≦|tan(HAF)|≦3.0; |TDT|≦60%; and|ODT|≦50%;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance in parallel with the optical axis between an object-sidesurface, which face the object side, of the first lens and the imageplane; HAF is a half of the view angle of the optical image capturingsystem; TDT is a TV distortion; and ODT is an optical distortion.

In an embodiment, the optical image capturing system further includes animage sensor with a size less than 1/1.2″ in diagonal, and a pixel lessthan 1.4 μm. A preferable size is 1/2.3″, and a preferable pixel size ofthe image sensor is less than 1.12 μm, and more preferable pixel size isless than 0.9 μm. A 16:9 image sensor is available for the optical imagecapturing system of the present invention.

In an embodiment, the optical image capturing system of the presentinvention is available to high-quality (4K2K, so called UHD and QHD)recording, and provides high quality of image.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>f5.

In an embodiment, when the lenses satisfy |f2|+|f3|+|f4|>|f1|+|f5|, atleast one of the lenses from the second lens to the fourth lens couldhave weak positive refractive power or weak negative refractive power.The weak refractive power indicates that an absolute value of the focallength is greater than 10. When at least one of the lenses from thesecond lens to the fourth lens could have weak positive refractivepower, it may share the positive refractive power of the first lens, andon the contrary, when at least one of the lenses from the second lens tothe fourth lens could have weak negative refractive power, it may finelymodify the aberration of the system.

In an embodiment, the fifth lens has negative refractive power, and animage-side surface thereof can be concave, it may reduce back focallength and size. Besides, the fifth lens has at least an inflectionpoint on at least a surface thereof, which may reduce an incident angleof the light of an off-axis field of view and modify the aberration ofthe off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first preferred embodiment of thepresent invention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a curve diagram of TV distortion of the optical imagecapturing system of the first embodiment of the present application;

FIG. 2A is a schematic diagram of a second preferred embodiment of thepresent invention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a curve diagram of TV distortion of the optical imagecapturing system of the second embodiment of the present application;

FIG. 3A is a schematic diagram of a third preferred embodiment of thepresent invention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a curve diagram of TV distortion of the optical imagecapturing system of the third embodiment of the present application;

FIG. 4A is a schematic diagram of a fourth preferred embodiment of thepresent invention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a curve diagram of TV distortion of the optical imagecapturing system of the fourth embodiment of the present application;

FIG. 5A is a schematic diagram of a fifth preferred embodiment of thepresent invention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a curve diagram of TV distortion of the optical imagecapturing system of the fifth embodiment of the present application;

FIG. 6A is a schematic diagram of a sixth preferred embodiment of thepresent invention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application; and

FIG. 6C shows a curve diagram of TV distortion of the optical imagecapturing system of the sixth embodiment of the present application.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, a fourth lens, and a fifth lensfrom an object side to an image side. The optical image capturing systemfurther is provided with an image sensor at an image plane.

The optical image capturing system works in three wavelengths, including486.1 nm, 587.5 nm, and 656.2 nm, wherein 587.5 mm is the main referencewavelength, and 555 nm is adopted as the main reference wavelength forextracting features.

The optical image capturing system of the present invention satisfies0.5≦ΣPPR/|ΣNPR|≦2.5, and a preferable range is 1≦ΣPPR/|ΣNPR|≦2.0, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; ΣPPR is a sum of the PPRs of each positive lens, andΣNPR is a sum of the NPRs of each negative lens. It is helpful tocontrol of an entire refractive power and an entire length of theoptical image capturing system.

HOS is a height of the optical image capturing system, and when theratio of HOS/f approaches to 1, it is helpful for decrease of size andincrease of imaging quality.

In an embodiment, the optical image capturing system of the presentinvention satisfies 0<ΣPP≦200 and f1/ΣPP≦0.85, and a preferable range is0<ΣPP≦150 and 0.01≦f1/ΣPP≦0.6, where ΣPP is a sum of a focal length fpof each lens with positive refractive power, and ΣNP is a sum of a focallength fn of each lens with negative refractive power. It is helpful tocontrol of focusing capacity of the system and redistribution of thepositive refractive powers of the system to avoid the significantaberration in early time. The optical image capturing system furthersatisfies ΣNP<−0.1 and f5/ΣNP≦0.85, and preferably satisfies ΣNP<0 and0.01≦f5/ΣNP≦0.5, which is helpful to control of an entire refractivepower and an entire length of the optical image capturing system.

The first lens has positive refractive power, and an object-sidesurface, which faces the object side, thereof can be convex. It maymodify the positive refractive power of the first lens as well asshorten the entire length of the system.

The second lens can have negative refractive power, which may correctthe aberration of the first lens.

The third lens can have positive refractive power, which may share thepositive refractive power of the first lens.

The fourth lens can have negative refractive power, and an image-sidesurface thereof, which faces the image side, can be convex. The fourthlens may share the positive refractive power of the first lens to reducean increase of the aberration and reduce a sensitivity of the system.

The fifth lens has negative refractive power, and an image-side surfacethereof, which faces the image side, can be concave. It may shorten arear focal length to reduce the size of the system. In addition, thefifth lens is provided with at least an inflection point on at least asurface to reduce an incident angle of the light of an off-axis field ofview and modify the aberration of the off-axis field of view. It ispreferable that each surface, the object-side surface and the image-sidesurface, of the fifth lens has at least an inflection point.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≦3 and0.5≦HOS/f≦3.0, and a preferable range is 1≦HOS/HOI≦2.5 and 1≦HOS/f≦2,where HOI is height for image formation of the optical image capturingsystem, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e., a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of size of the system for used in compactcameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.5≦InS/HOS≦1.1, and a preferable range is 0.8≦InS/HOS≦1,where InS is a distance between the aperture and the image plane. It ishelpful for size reduction and wide angle.

The optical image capturing system of the present invention satisfies0.45≦ΣTP/InTL≦0.95, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the fifth lens,and ΣTP is a sum of central thicknesses of the lenses on the opticalaxis. It is helpful for the contrast of image and yield of manufacture,and provides a suitable back focal length for installation of otherelements.

The optical image capturing system of the present invention satisfies0.1≦|R1/R2|≦5, and a preferable range is 0.1≦|R1/R2|≦4, where R1 is aradius of curvature of the object-side surface of the first lens, and R2is a radius of curvature of the image-side surface of the first lens. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−200<(R9−R10)/(R9+R10)<30, where R9 is a radius of curvature of theobject-side surface of the fifth lens, and R10 is a radius of curvatureof the image-side surface of the fifth lens. It may modify theastigmatic field curvature.

The optical image capturing system of the present invention satisfies0<IN12/f≦0.25, and a preferable range is 0.01≦IN12/f≦0.20, where IN12 isa distance on the optical axis between the first lens and the secondlens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies1≦(TP1+IN12)/TP2≦10, where TP1 is a central thickness of the first lenson the optical axis, and TP2 is a central thickness of the second lenson the optical axis. It may control the sensitivity of manufacture ofthe system and improve the performance.

The optical image capturing system of the present invention satisfies0.2≦(TP5+IN45)/TP4≦3, where TP4 is a central thickness of the fourthlens on the optical axis, TP5 is a central thickness of the fifth lenson the optical axis, and IN45 is a distance between the fourth lens andthe fifth lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≦(TP2+TP3+TP4)/ΣTP≦0.9, and a preferable range is0.4≦(TP2+TP3+TP4)/ΣTP≦0.8, where TP2 is a central thickness of thesecond lens on the optical axis, TP3 is a central thickness of the thirdlens on the optical axis, TP4 is a central thickness of the fourth lenson the optical axis, TP5 is a central thickness of the fifth lens on theoptical axis, and ΣTP is a sum of the central thicknesses of all thelenses on the optical axis. It may finely modify the aberration of theincident rays and reduce the height of the system.

The optical image capturing system of the present invention satisfies−1.5 mm≦InRS51≦1.5 mm; −1.5 mm≦InRS52≦1.5 mm; 0 mm≦|InRS51|+|InRS52|≦3mm; 0.01≦|InRS51|/TP5≦10; and 0.01≦|InRS52|/TP5≦10, where InRS51 is adisplacement in parallel with the optical axis from a point on theobject-side surface of the fifth lens, through which the optical axispasses, to a point at the maximum effective semi diameter of theobject-side surface of the fifth lens, wherein InRS51 is positive whilethe displacement is toward the image side, and InRS51 is negative whilethe displacement is toward the object side; InRS52 is a displacement inparallel with the optical axis from a point on the image-side surface ofthe fifth lens, through which the optical axis passes, to a point at themaximum effective semi diameter of the image-side surface of the fifthlens; and TP5 is a central thickness of the fifth lens on the opticalaxis. It may control the positions of the maximum effective semidiameter on both surfaces of the fifth lens, correct the aberration ofthe spherical field of view, and reduce the size.

The optical image capturing system of the present invention satisfies0<SGI511/(SGI511+TP5)≦0.9 and 0<SGI521/(SGI521+TP5)≦0.9, and apreferable range is 0.01<SGI511/(SGI511+TP5)≦0.7 and0.01<SGI521/(SGI521+TP5)≦0.7, where SGI511 is a displacement in parallelwith the optical axis from a point on the object-side surface of thefifth lens, through which the optical axis passes, to an inflectionpoint, which is the closest to the optical axis, on the object-sidesurface of the fifth lens; SGI521 is a displacement in parallel with theoptical axis from a point on the image-side surface of the fifth lens,through which the optical axis passes, to an inflection point, which isthe closest to the optical axis, on the image-side surface of the fifthlens, and TP5 is a thickness of the fifth lens on the optical axis.

The optical image capturing system of the present invention satisfies0<SGI512/(SGI512+TP5)≦0.9 and 0<SGI522 /(SGI522+TP5)≦0.9, and apreferable range is 0.1≦SGI512/(SGI512+TP5)≦0.8 and 0.1≦SGI522/(SGI522+TP5)≦0.8, where SGI512 is a displacement in parallel with theoptical axis from a point on the object-side surface of the fifth lens,through which the optical axis passes, to an inflection point, which isthe second closest to the optical axis, on the image-side surface of thefifth lens, and SGI522 is a displacement in parallel with the opticalaxis from a point on the object-side surface of the fifth lens, throughwhich the optical axis passes, to an inflection point, which is thesecond closest to the optical axis, on the image-side surface of thefifth lens.

The optical image capturing system of the present invention satisfies0.01≦HIF511/HOI≦0.9 and 0.01≦HIF521/HOI≦0.9, and a preferable range is0.09≦HIF511/HOI≦0.5 and 0.09≦HIF521/HOI≦0.5, where HIF511 is a distanceperpendicular to the optical axis between the inflection point, which isthe closest to the optical axis, on the object-side surface of the fifthlens and the optical axis, and HIF521 is a distance perpendicular to theoptical axis between the inflection point, which is the closest to theoptical axis, on the image-side surface of the fifth lens and theoptical axis.

The optical image capturing system of the present invention satisfies0.01≦HIF512/HOI≦0.9 and 0.01≦HIF522/HOI≦0.9, and a preferable range is0.09≦HIF512/HOI≦0.8 and 0.09≦HIF522/HOI≦0.8, where HIF512 is a distanceperpendicular to the optical axis between the inflection point, which isthe second the closest to the optical axis, on the object-side surfaceof the fifth lens and the optical axis, and HIF522 is a distanceperpendicular to the optical axis between the inflection point, which isthe second the closest to the optical axis, on the image-side surface ofthe fifth lens and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface is

z=ch ²/[1+[1(k+1 )c ² h ²]^(0.5) ]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰   (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of refractive power of the system.In addition, the opposite surfaces (object-side surface and image-sidesurface) of the first to the fifth lenses could be aspheric that canobtain more control parameters to reduce aberration. The number ofaspheric glass lenses could be less than the conventional sphericalglass lenses that is helpful for reduction of the height of the system.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

The optical image capturing system of the present invention further isprovided with a diaphragm to increase image quality.

In the optical image capturing system, the diaphragm could be a frontdiaphragm or a middle diaphragm, wherein the front diaphragm is providedbetween the object and the first lens, and the middle is providedbetween the first lens and the image plane. The front diaphragm providesa long distance between an exit pupil of the system and the image plane,which allows more elements to be installed. The middle diaphragm couldenlarge a view angle of view of the system and increase the efficiencyof the image sensor. The middle diaphragm is helpful for size reductionand wide angle.

The optical image capturing system of the present invention could beapplied in dynamic focusing optical system. It is superior in correctionof aberration and high imaging quality so that it could be allied inlots of fields.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 100of the first preferred embodiment of the present invention includes,along an optical axis from an object side to an image side, an aperture100, a first lens 110, a second lens 120, a third lens 130, a fourthlens 140, a fifth lens 150, an infrared rays filter 170, an image plane180, and an image sensor 190.

The first lens 110 has positive refractive power, and is made ofplastic. An object-side surface 112 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 114thereof, which faces the image side, is a concave aspheric surface, andthe image-side surface has an inflection point. The first lens 110satisfies SGI121=0.0387148 mm and |SGI121|/(|SGI121|+TP1)=0.061775374,where SGI121 is a displacement in parallel with the optical axis from apoint on the image-side surface of the first lens, through which theoptical axis passes, to the inflection point on the image-side surface,which is the closest to the optical axis.

The first lens 110 further satisfies HIF121=0.61351 mm andHIF121/HOI=0.209139253, where HIF121 is a displacement perpendicular tothe optical axis from a point on the image-side surface of the firstlens, through which the optical axis passes, to the inflection point,which is the closest to the optical axis.

The second lens 120 has negative refractive power, and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 124thereof, which faces the image side, is a convex aspheric surface, andthe image-side surface 124 has an inflection point. The second lens 120satisfies SGI221=−0.0657553 mm and |SGI221|/(|SGI221|+TP2)=0.176581512,where SGI221 is a displacement in parallel with the optical axis from apoint on the image-side surface of the second lens, through which theoptical axis passes, to the inflection point on the image-side surface,which is the closest to the optical axis.

The second lens further satisfies HIF221=0.84667 mm andHIF221/HOI=0.288621101, where HIF221 is a displacement perpendicular tothe optical axis from a point on the image-side surface of the secondlens, through which the optical axis passes, to the inflection point,which is the closest to the optical axis.

The third lens 130 has negative refractive power, and is made ofplastic. An object-side surface 132, which faces the object side, is aconcave aspheric surface, and an image-side surface 134, which faces theimage side, is a convex aspheric surface, and each of them has twoinflection points. The third lens 130 satisfies SGI311=−0.341027 mm;SGI321=−0.231534 mm and |SGI311|/(|SGI311|+TP3)=0.525237108 and|SGI321|/(|SGI321|+TP3)=0.428934269, where SGI311 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI321 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the third lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The third lens 130 satisfies SGI312=−0.376807 mm; SGI322=−0.382162 mm;|SGI312|/(|SGI312|+TP5)=0.550033428; |SGI322|/(|SGI322|+TP3)=0.55352345,where SGI312 is a displacement in parallel with the optical axis, from apoint on the object-side surface of the third lens, through which theoptical axis passes, to the inflection point on the object-side surface,which is the second closest to the optical axis, and SGI322 is adisplacement in parallel with the optical axis, from a point on theimage-side surface of the third lens, through which the optical axispasses, to the inflection point on the image-side surface, which is thesecond closest to the optical axis.

The third lens 130 further satisfies HIF311=0.987648 mm; HIF321=0.805604mm; HIF311/HOI=0.336679052; and HIF321/HOI=0.274622124, where HIF311 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the closestto the optical axis, and the optical axis, and HIF321 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the closest to theoptical axis, and the optical axis.

The third lens 130 further satisfies HIF312=1.0493 mm; HIF322=1.17741mm; HIF312/HOI=0.357695585; and HIF322/HOI=0.401366968, where HIF312 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the secondthe closest to the optical axis, and the optical axis, and HIF322 is adistance perpendicular to the optical axis, between the inflection pointon the image-side surface of the third lens, which is the second theclosest to the optical axis, and the optical axis.

The fourth lens 140 has positive refractive power, and is made ofplastic. Both an object-side surface 142, which faces the object side,and an image-side surface 144, which faces the image side, thereof areconvex aspheric surfaces, and the object-side surface 142 has aninflection point. The fourth lens 140 satisfies SGI411=0.0687683 mm and|SGI411|/(|SGI411|+TP4)=0.118221297, where SGI411 is a displacement inparallel with the optical axis from a point on the object-side surfaceof the fourth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis.

The fourth lens 140 further satisfies HIF411=0.645213 mm andHIF411/HOI=0.21994648, where HIF411 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fourth lens, which is the closest to the optical axis, and theoptical axis.

The fifth lens 150 has negative refractive power, and is made ofplastic. Both an object-side surface 152, which faces the object side,and an image-side surface 154, which faces the image side, thereof areconcave aspheric surfaces. The object-side surface 152 has threeinflection points, and the image-side surface 154 has an inflectionpoint. The fifth lens 150 satisfies SGI511=−0.236079 mm; SGI521=0.023266mm; |SGI511|/(|SGI511|+TP5)=0.418297214; and|SGI521|/(|SGI521|+TP5)=0.066177809, where SGI511 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the closest to theoptical axis, and SGI521 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the fifth lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The fifth lens 150 further satisfies SGI512=−0.325042 mm and|SGI512|/(|SGI512|+TP5)=0.497505143, where SGI512 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the second closestto the optical axis.

The fifth lens 150 further satisfies SGI513=−0.538131 mm; and|SGI513|/(|SGI513|+TP5)=0.621087839, where SGI513 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the fifth lens, through which the optical axis passes, to theinflection point on the object-side surface, which is the third closestto the optical axis.

The fifth lens 150 further satisfies HIF511=1.21551 mm; HIF521=0.575738mm; HIF511/HOI=0.414354866; and HIF521/HOI=0.196263167, where HIF511 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the fifth lens, which is the closestto the optical axis, and the optical axis, and HIF521 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the fifth lens, which is the closest to theoptical axis, and the optical axis.

The fifth lens 150 further satisfies HIF512=1.49061 mm andHIF512/HOI=0.508133629, where HIF512 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the second the closest to the optical axis, andthe optical axis.

The fifth lens 150 further satisfies HIF513=2.00664 mm andHIF513/HOI=0.684042952, where HIF513 is a distance perpendicular to theoptical axis between the inflection point on the object-side surface ofthe fifth lens, which is the third closest to the optical axis, and theoptical axis.

The infrared rays filter 170 is made of glass, and between the fifthlens 150 and the image plane 180. The infrared rays filter 170 gives nocontribution to the focal length of the system.

The optical image capturing system of the first preferred embodiment hasthe following parameters, which are f=3.73172 mm; f/HEP=2.05; andHAF=37.5 degrees and tan(HAF)=0.7673, where f is a focal length of thesystem; HAF is a half of the maximum field angle; and HEP is an entrancepupil diameter.

The parameters of the lenses of the first preferred embodiment aref1=3.7751 mm; |f/f1|=0.9885; f5=−3.6601 mm; |f1|>f5; and |f1/f5|=1.0314,where f1 is a focal length of the first lens 110; and f5 is a focallength of the fifth lens 150.

The first preferred embodiment further satisfies |f2|+|f3|+|f4|=77.3594mm; |f1|+|f5|=7.4352 mm; and |f2|+|f3|+|f4|>|f1|+|f5|, where f2 is afocal length of the second lens 120; f3 is a focal length of the thirdlens 130; and f4 is a focal length of the fourth lens 140.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPPR=f/f1+f/f4=1.9785; ΣNPR=f/f2+f/f3+f/f5=−1.2901;ΣPPR/|ΣNPR|=1.5336; |f/f1|=0.9885; |f/f2|=0.0676; |f/f3|=0.2029;|f/f4|=0.9900; and |f/f5|=1.0196, where PPR is a ratio of a focal lengthf of the optical image capturing system to a focal length fp of each ofthe lenses with positive refractive power; and NPR is a ratio of a focallength f of the optical image capturing system to a focal length fn ofeach of lenses with negative refractive power.

The optical image capturing system of the first preferred embodimentfurther satisfies InTL+InB=HOS; HOS=4.5 mm; HOI=2.9335 mm;HOS/HOI=1.5340; HOS/f=1.2059; InTL/HOS=0.7597; InS=4.19216 mm; andInS/HOS=0.9316, where InTL is a distance between the object-side surface112 of the first lens 110 and the image-side surface 154 of the fifthlens 150; HOS is a height of the image capturing system, i.e., adistance between the object-side surface 112 of the first lens 110 andthe image plane 180; InS is a distance between the aperture 100 and theimage plane 180; HOI is height for image formation of the optical imagecapturing system, i.e., the maximum image height; and InB is a distancebetween the image-side surface 154 of the fifth lens 150 and the imageplane 180.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣTP=2.044092 mm and ΣTP/InTL=0.5979, where ΣTP is asum of the thicknesses of the lenses 110-150 with refractive power. Itis helpful for the contrast of image and yield of manufacture, andprovides a suitable back focal length for installation of otherelements.

The optical image capturing system of the first preferred embodimentfurther satisfies |R1/R2|=0.3261, where R1 is a radius of curvature ofthe object-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the first preferred embodimentfurther satisfies (R9−R10)/(R9+R10)=−2.9828, where R9 is a radius ofcurvature of the object-side surface 152 of the fifth lens 150, and R10is a radius of curvature of the image-side surface 154 of the fifth lens150. It may modify the astigmatic field curvature.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣPP=f1+f4=7.5444 mm and f1/(f1+f4)=0.5004, where ΣPPis a sum of the focal lengths fp of each lens with positive refractivepower. It is helpful to share the positive refractive power of the firstlens 110 to the other positive lens to avoid the significant aberrationcaused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies ΣNP=f2+f3+f5=−77.2502 mm and f5/(f2+f3+f5)=0.0474,where f2, f3, and f5 are focal lengths of the second, the third, and thefifth lenses, and ΣNP is a sum of the focal lengths fn of each lens withnegative refractive power. It is helpful to share the negativerefractive power of the fifth lens 150 to other negative lenses to avoidthe significant aberration caused by the incident rays.

The optical image capturing system of the first preferred embodimentfurther satisfies IN12=0.511659 mm and IN12/f=0.1371, where IN12 is adistance on the optical axis between the first lens 110 and the secondlens 120. It may correct chromatic aberration and improve theperformance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP1=0.587988 mm; TP2=0.306624 mm; and(TP1+IN12)/TP2=3.5863, where TP1 is a central thickness of the firstlens 110 on the optical axis, and TP2 is a central thickness of thesecond lens 120 on the optical axis. It may control the sensitivity ofmanufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP4=0.5129 mm; TP5=0.3283 mm; and(TP5+IN45)/TP4=1.5095, where TP4 is a central thickness of the fourthlens 140 on the optical axis, TP5 is a central thickness of the fifthlens 150 on the optical axis, and IN45 is a distance on the optical axisbetween the fourth lens and the fifth lens. It may control thesensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the first preferred embodimentfurther satisfies TP3=0.3083 mm and (TP2+TP3+TP4)/ΣTP=0.5517, where TP2,TP3, and TP4 are thicknesses on the optical axis of the second, thethird, and the fourth lenses, and ΣTP is a sum of the centralthicknesses of all the lenses with refractive power on the optical axis.It may finely modify the aberration of the incident rays and reduce theheight of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies InRS51=−0.57687 1 mm; InRS52=−0.555284 mm;|InRS51|+|InRS52|=1.1132155 mm; |InRS51|/TP5=1.7571; and|InRS52|/TP5=1.691, where InRS51 is a displacement in parallel with theoptical axis from a point on the object-side surface 152 of the fifthlens, through which the optical axis passes, to a point at the maximumeffective semi diameter of the object-side surface 152 of the fifthlens; InRS52 is a displacement in parallel with the optical axis from apoint on the image-side surface 154 of the fifth lens, through which theoptical axis passes, to a point at the maximum effective semi diameterof the image-side surface 154 of the fifth lens; and TP5 is a centralthickness of the fifth lens 150 on the optical axis. It is helpful formanufacturing and shaping of the lenses, and is helpful to reduce thesize.

The second lens 120 and the fifth lens 150 of the optical imagecapturing system of the first preferred embodiment have negativerefractive power, and the optical image capturing system furthersatisfies NA5/NA2=2.5441, where NA2 is an Abbe number of the second lens120, and NA5 is an Abbe number of the fifth lens 150. It may correct theaberration of the system.

The optical image capturing system of the first preferred embodimentfurther satisfies |TDT|=0.6343% and |ODT|=2.5001%, where TDT is TVdistortion; and ODT is optical distortion.

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 3.73172 mm; f/HEP = 2.05; HAF = 37.5 deg; tan(HAF) = 0.7673Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane infinity 1 Aperture plane−0.30784 2 1^(st) lens 1.48285 0.587988 plastic 1.5441 56.1 3.77514 34.54742 0.511659 4 2^(nd) lens −9.33807 0.306624 plastic 1.6425 22.465−55.2008 5 −12.8028 0.366935 6 3^(rd) lens −1.02094 0.308255 plastic1.6425 22.465 −18.3893 7 −1.2492 0.05 8 4^(th) lens 2.18916 0.512923plastic 1.5441 56.1 3.7693 9 −31.3936 0.44596 10 5^(th) lens −2.863530.328302 plastic 1.514 57.1538 −3.6601 11 5.75188 0.3 12 Filter plane0.2 1.517 64.2 13 plane 0.58424 14 Image plane plane −0.00289 Referencewavelength: 555 nm

TABLE 2 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 k−1.83479 −20.595808 16.674705 11.425456 −4.642191 A4 6.89867E−022.25678E−02 −1.11828E−01 −4.19899E−02 −7.09315E−02 A6 2.35740E−02−6.17850E−02 −6.62880E−02 −1.88072E−02 9.65840E−02 A8 −4.26369E−025.82944E−02 −3.35190E−02 −6.98321E−02 −7.32044E−03 A10 5.63746E−03−2.73938E−02 −7.28886E−02 −1.13079E−02 −8.96740E−02 A12 7.46740E−02−2.45759E−01 4.05955E−02 6.79127E−02 −3.70146E−02 A14 −6.93116E−023.43401E−01 1.60451E−01 2.83769E−02 5.00641E−02 A16 −2.04867E−02−1.28084E−01 1.24448E−01 −2.45035E−02 7.50413E−02 A18 1.99910E−02−2.32031E−02 −1.94856E−01 2.90241E−02 −5.10392E−02 A20 Surface 7 8 9 1011 k −1.197201 −20.458388 −50 −2.907359 −50 A4 3.64395E−02 −1.75641E−02−7.82211E−04 −1.58711E−03 −2.46339E−02 A6 2.22356E−02 −2.87240E−03−2.47110E−04 −3.46504E−03 6.61804E−04 A8 7.09828E−03 −2.56360E−04−3.78130E−04 4.52459E−03 1.54143E−04 A10 5.05740E−03 7.39189E−05−1.22232E−04 1.05841E−04 −2.83264E−05 A12 −4.51124E−04 −5.53116E−08−1.50294E−05 −5.57252E−04 −5.78839E−06 A14 −1.84003E−03 8.16043E−06−5.41743E−07 4.41714E−05 −2.91861E−07 A16 −1.28118E−03 2.10395E−062.98820E−07 1.80752E−05 8.25778E−08 A18 4.09004E−04 −1.21664E−062.73321E−07 −2.27031E−06 −9.87595E−09 A20

The detail parameters of the first preferred embodiment are listed inTable 1, in which the unit of radius of curvature, thickness, and focallength are millimeter, and surface 0-14 indicates the surfaces of allelements in the system in sequence from the object side to the imageside. Table 2 is the list of coefficients of the aspheric surfaces, inwhich A1-A20 indicate the coefficients of aspheric surfaces from thefirst order to the twentieth order of each aspheric surface. Thefollowing embodiments have the similar diagrams and tables, which arethe same as those of the first embodiment, so we do not describe itagain.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system ofthe second preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 210,an aperture 200, a second lens 220, a third lens 230, a fourth lens 240,a fifth lens 250, an infrared rays filter 270, an image plane 280, andan image sensor 290.

The first lens 210 has positive refractive power, and is made ofplastic. An object-side surface 212 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 214thereof, which faces the image side, is a convex aspheric surface, andeach of them has an inflection point respectively.

The second lens 220 has negative refractive power, and is made ofplastic. An object-side surface 222 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 224thereof, which faces the image side, is a concave aspheric surface.

The third lens 230 has positive refractive power, and is made ofplastic. An object-side surface 232, which faces the object side, is aconvex aspheric surface, and an image-side surface 234, which faces theimage side, is a convex aspheric surface. The object-side surface 232has an inflection point thereon.

The fourth lens 240 has negative refractive power, and is made ofplastic. An object-side surface 242 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 244thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 242 and the image-side surface 244 both have twoinflection points thereon.

The fifth lens 250 has negative refractive power, and is made ofplastic. An object-side surface 252 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 254thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 252 and the image-side surface 254 both have aninflection point.

The infrared rays filter 270 is made of glass, and between the fifthlens 250 and the image plane 280. The infrared rays filter 270 gives nocontribution to the focal length of the system.

The optical image capturing system of the second preferred embodimenthas the following parameters, which are |f2|+|f3|+|f4|=114.8894 mm;|f1|+|f5|=10.1200 mm; and |f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focallength of the first lens 210; f2 is a focal length of the second lens220; f3 is a focal length of the third lens 230; f4 is a focal length ofthe fourth lens 240; and f5 is a focal length of the fifth lens 250.

The optical image capturing system of the second preferred embodimentfurther satisfies TP4=0.4410 mm and TP5=0.5313 mm, where TP4 is athickness of the fourth lens on the optical axis, and TP5 is a thicknessof the fifth lens on the optical axis.

In the second embodiment, the first and the third lenses 210, 230 arepositive lenses, and their focal lengths are f1 and f3 respectively. Theoptical image capturing system of the second preferred embodimentfurther satisfies ΣPP=f1+f3 =8.8653 mm and f1/(f1+f3)=0.7708, where ΣPPis a sum of the focal lengths of each positive lens. It is helpful toshare the positive refractive power of the first lens 210 to the otherpositive lens to avoid the significant aberration caused by the incidentrays.

The optical image capturing system of the second preferred embodimentfurther satisfies ΣNP=f2+f4+f5=−116.1440 mm and f5/(f2+f4+f5)=0.1107,where f2, f4 and f5 are focal lengths of the second lens 220, the fourthlens 240, and the fifth lenses 250, and ΣNP is a sum of the focallengths of each negative lens. It is helpful to share the negativerefractive power of the fifth lens 250 to other negative lenses to avoidthe significant aberration caused by the incident rays.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 3.04499 mm; f/HEP = 1.4; HAF = 50.0014 deg; tan(HAF) =1.1918 Focal Radius of Thickness Refractive length Surface curvature(mm) (mm) Material index Abbe number (mm) 0 Object plane infinity 11^(st) lens −11.5199 0.633953 plastic 1.65 21.4 6.83352 2 −3.295340.539549 3 Aperture plane −0.26732 4 2^(nd) lens 5.32819 0.256081plastic 1.514 56.8 −12.8556 5 2.90562 0.214751 6 3^(rd) lens 5.760492.25 plastic 1.565 58 2.03175 7 −1.23591 0.068369 8 4^(th) lens −1.223690.44095 plastic 1.65 21.4 −100.002 9 −1.42488 0.43528 10 5^(th) lens20.15529 0.531272 plastic 1.583 30.2 −3.28643 11 1.74207 0.4 12 Filterplane 0.2 1.517 64.2 13 plane 0.369886 14 Image plane 0.066676 planeReference wavelength: 555 nm. The clear aperture of the first surface is1.7 mm; the clear aperture of the sixth surface is 1.0 mm

TABLE 4 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k =−32.111489 −29.043197 20.538497 2.893875 7.796234 A4 = 1.70448E−025.44336E−02 2.36690E−01 1.25318E−01 −1.94309E−02 9.12064E−02 A6 =8.58212E−03 −1.58941E−02 −2.84178E−01 −2.75917E−01 3.54828E−02−3.25066E−02 A8 = −4.73154E−03 8.98647E−03 1.97091E−01 2.44372E−01−9.14755E−02 1.21732E−02 A10 = 1.82736E−03 2.30323E−03 −3.05007E−02−5.88377E−02 −1.34040E−02 −7.31762E−04 A12 = −4.01244E−04 −3.78821E−03−4.55037E−02 −6.05169E−02 1.12767E−01 −1.42096E−03 A14 = 4.46980E−051.21091E−03 2.24753E−02 3.46406E−02 −6.98898E−02 4.50126E−04 Surface 8 910 11 k = −0.529239 −0.595565 −50 −5.806512 A4 = 2.85489E−02 2.23253E−02−8.92450E−02 −2.98001E−02 A6 = 2.77193E−02 5.27678E−03 2.78230E−025.50570E−03 A8 = −7.88676E−04 5.95196E−03 −8.37179E−03 −8.32298E−04 A10= −7.39920E−04 −1.24426E−03 −4.17360E−05 4.58552E−05 A12 = 2.04814E−041.84562E−04 6.66916E−04 2.88566E−06 A14 = 7.88900E−05 −3.09911E−05−1.11326E−04 −3.94115E−07

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment (with 555 nm as the mainreference wavelength) based on Table 3 and Table 4 are listed in thefollowing table:

|TDT| 1.0832% InRS41 −0.8325 |ODT| 1.9986% InRS42 −0.7040 ΣPP 8.8653InRS51 −0.8519 ΣNP −116.1440 InRS52 −0.4117 f1/ΣPP 0.7708 |InRS51|/TP51.4205 f5/ΣNP 0.1107 |InRS52|/TP5 0.6866 IN12/f 0.0894 (|InRS42| +|InRS51|)/ 3.5744 IN45 HOS/f 2.0162 HVT51 0.3839 HOS 6.1394 HVT52 1.8828InTL 5.1029 HVT51/HOI 0.1026 HOS/HOI 1.6416 HVT52/HOI 0.5034 InS/HOS0.8089 HVT52/HOS 0.3067 InTL/HOS 0.8312 |f/f1| 0.4456 ΣTP/InTL 0.8059|f/f2| 0.2369 (TP1 + IN12)/TP2 3.5386 |f/f3| 1.4987 (TP5 + IN45)/TP42.1920 |f/f4| 0.0304 (TP2 + TP3 + TP4)/ΣTP 0.7166 |f/f5| 0.9265

The exact parameters related to inflection points of the secondembodiment (with main reference wavelength as 555 nm) based on Table 3and Table 4 are listed in the following table:

HIF111 0.54717 HIF111/HOI 0.14630 SGI111 −0.01105 |SGI111|/(|SGI111| +TP1) 0.01713 HIF121 0.50238 HIF121/HOI 0.13433 SGI121 −0.03027|SGI121|/(|SGI121| + TP1) 0.04557 HIF311 0.65171 HIF311/HOI 0.17425SGI311 0.03451 |SGI311|/(|SGI311| + TP3) 0.05162 HIF411 1.16832HIF411/HOI 0.31239 SGI411 −0.51592 |SGI411|/(|SGI411| + TP4) 0.44868HIF412 1.60870 HIF412/HOI 0.43013 SGI412 −0.80388 |SGI412|/(|SGI412| +TP4) 0.55909 HIF421 1.14342 HIF421/HOI 0.30573 SGI421 −0.43001|SGI421|/(|SGI421| + TP4) 0.40416 HIF422 1.81927 HIF422/HOI 0.48644SGI422 −0.70301 |SGI422|/(|SGI422| + TP4) 0.52583 HIF511 0.21828HIF511/HOI 0.05836 SGI511 0.00098 |SGI511|/(|SGI511| + TP5) 0.00154HIF521 0.84145 HIF521/HOI 0.22499 SGI521 0.15227 |SGI521|/(|SGI521| +TP5) 0.19367

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system ofthe third preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 310,an aperture 300, a second lens 320, a third lens 330, a fourth lens 340,a fifth lens 350, an infrared rays filter 370, an image plane 380, andan image sensor 390.

The first lens 310 has positive refractive power, and is made ofplastic. An object-side surface 312 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 314thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 312 and the image-side surface 314 both have aninflection point thereon.

The second lens 320 has negative refractive power, and is made ofplastic. An object-side surface 322 thereof, which faces the objectside, is a convex aspheric surface; while an image-side surface 324thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 322 and the image-side surface 324 both have aninflection point thereon.

The third lens 330 has positive refractive power, and is made ofplastic. An object-side surface 332, which faces the object side, is aconcave aspheric surface, and an image-side surface 334, which faces theimage side, is a convex aspheric surface.

The fourth lens 340 has a negative refractive power, and is made ofplastic. An object-side surface 342, which faces the object side, is aconcave aspheric surface, and an image-side surface 344, which faces theimage side, is a convex aspheric surface. The object-side surface 342has two inflection points thereon.

The fifth lens 350 has negative refractive power, and is made ofplastic. Both an object-side surface 352, which faces the object side,and an image-side surface 354, which faces the image side, thereof areconcave aspheric surfaces. The object-side surface 352 has twoinflection points, and the image-side surface 354 has an inflectionpoint.

The infrared rays filter 370 is made of glass, and between the fifthlens 350 and the image plane 380. The infrared rays filter 370 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third preferred embodiment are|f2|+|f3|+|f4|=109.5899 mm; |f1|+|f5|=8.8602 mm; and|f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focal length of the first lens310; f2 is a focal length of the second lens 320; f3 is a focal lengthof the third lens 330; and f4 is a focal length of the fourth lens 340;and f5 is a focal length of the fifth lens 350.

The optical image capturing system of the third preferred embodimentfurther satisfies TP4=0.5368 mm and TP5=0.3381 mm, where TP4 is athickness of the fourth lens 340 on the optical axis, and TP5 is athickness of the fifth lens 350 on the optical axis.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣPP=f1+f3=7.7668 mm and f1/(f1 +f3)=0.7975, where ΣPPis a sum of the focal lengths of each positive lens. It is helpful toshare the positive refractive power of the first lens 310 to the otherpositive lens to avoid the significant aberration caused by the incidentrays.

The optical image capturing system of the third preferred embodimentfurther satisfies ΣNP=f2+f4+f5=−110.6832 mm and f5/(f2+f4+f5)=0.9035,where ΣNP is a sum of the focal lengths of each negative lens. It ishelpful to share the negative refractive power of the fifth lens 350 toother lenses with negative refractive power.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 3.12928 mm; f/HEP = 1.6; HAF = 49.9989 deg; tan(HAF) =1.1917 Focal Radius of Thickness Refractive length Surface curvature(mm) (mm) Material index Abbe number (mm) 0 Object plane infinity 1 1stlens 2.17479 0.439545 plastic 1.565 30.2 6.19403 2 5.01406 0.143529 3Aperture plane 0.391924 4 2^(nd) lens 21.87254 0.807168 plastic 1.565 58−100 5 15.5714 0.198468 6 3^(rd) lens −10.4212 0.640669 plastic 1.565 581.57278 7 −0.83944 0.051804 8 4^(th) lens −1.01884 0.536834 plastic1.565 26.6 −8.01707 9 −1.54344 0.683804 10 5^(th) lens −3.49326 0.338125plastic 1.65 26.6 −2.66616 11 3.16565 0.3 12 Filter plane 0.2 1.517 64.213 plane 0.246045 14 Image plane 0.084534 plane Reference wavelength:555 nm. The clear aperture of the second surface is 1.15 mm; the clearaperture of the sixth surface is 1.4 mm

TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k =−14.410401 −27.502948 50 6.437629 38.56702 −2.357464 A4 = 1.54287E−014.25401E−02 −8.89025E−02 −4.61798E−02 −1.12970E−01 1.81107E−02 A6 =−9.29394E−02 −5.19366E−02 9.02399E−02 −1.12820E−02 1.08679E−02−1.57741E−02 A8 = 2.58799E−02 4.23595E−02 −1.61847E−01 −1.08748E−037.76558E−04 6.40568E−03 A10 = 2.28794E−02 1.79752E−02 3.72701E−02−4.01437E−03 9.34479E−04 1.24315E−03 A12 = −1.57336E−02 −6.17245E−029.09078E−02 −5.56028E−03 −7.06209E−04 −2.87684E−04 A14 = 2.20896E−052.49091E−02 −7.44749E−02 1.56050E−03 −5.68331E−04 −5.07523E−04 Surface 89 10 11 k −2.236569 −0.498113 −1.402819 −14.974414 A4 1.23225E−016.71654E−03 −6.65366E−02 −2.32053E−02 A6 −1.26790E−02 6.90319E−032.01675E−02 2.95881E−03 A8 −2.22656E−02 3.26373E−04 −9.13378E−04−2.22849E−04 A10 4.04064E−03 −1.81551E−04 −3.57198E−04 9.89530E−06 A123.16419E−03 −4.85787E−05 7.54275E−05 2.46777E−07 A14 −1.38314E−031.18225E−06 −6.96187E−06 −8.80462E−08

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment (with 555 nm as the mainreference wavelength) based on Table 5 and Table 6 are listed in thefollowing table:

|TDT| 1.3431% InRS41 −0.8779 |ODT| 2.0776% InRS42 −1.1739 ΣPP 7.7668InRS51 −1.0157 ΣNP −110.6832 InRS52 −0.4889 f1/ΣPP 0.7975 |InRS51|/TP51.6936 f5/ΣNP 0.9035 |InRS52|/TP5 0.8152 IN12/f 0.1711 (|InRS42| +|InRS51|)/ 3.2020 IN45 HOS/f 1.6178 HVT51 0 HOS 5.0625 HVT52 1.6048 InTL4.2319 HVT51/HOI 0 HOS/HOI 1.3536 HVT52/HOI 0.4291 InS/HOS 0.8848HVT52/HOS 0.3170 InTL/HOS 0.8359 |f/f1| 0.5052 ΣTP/InTL 0.6527 |f/f2|0.0313 (TP1 + IN12)/TP2 1.2079 |f/f3| 1.9896 (TP5 + IN45)/TP4 1.9036|f/f4| 0.3903 (TP2 + TP3 + TP4)/ΣTP 0.7185 |f/f5| 1.1737

The exact parameters related to inflection points of the secondembodiment (with main reference wavelength as 555 nm) based on Table 5and Table 6 are listed in the following table:

HIF111 1.08504 HIF111/HOI 0.29012 SGI111 0.29743 |SGI111|/(|SGI111| +TP1) 0.40358 HIF121 0.85686 HIF121/HOI 0.22911 SGI121 0.07451|SGI121|/(|SGI121| + TP1) 0.14495 HIF211 0.21938 HIF211/HOI 0.05866SGI211 0.00090 |SGI211|/(|SGI211| + TP2) 0.00205 HIF221 0.33007HIF221/HOI 0.08825 SGI221 0.00294 |SGI221|/(|SGI221| + TP2) 0.00664HIF411 0.68404 HIF411/HOI 0.18290 SGI411 −0.17957 |SGI411|/(|SGI411| +TP4) 0.29004 HIF412 1.04281 HIF412/HOI 0.27883 SGI412 −0.31721|SGI412|/(|SGI412| + TP4) 0.41917 HIF511 1.49205 HIF511/HOI 0.39894SGI511 −0.45491 |SGI511|/(|SGI511| + TP5) 0.50859 HIF512 1.95532HIF512/HOI 0.52281 SGI512 −0.71100 |SGI512|/(|SGI512| + TP5) 0.61797HIF521 0.75369 HIF521/HOI 0.20152 SGI521 0.06976 |SGI521|/(|SGI521| +TP5) 0.13697

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system ofthe fourth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, an aperture 400, afirst lens 410, a second lens 420, a third lens 430, a fourth lens 440,a fifth lens 450, an infrared rays filter 470, an image plane 480, andan image sensor 490.

The first lens 410 has positive refractive power, and is made ofplastic. An object-side surface 412 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 414thereof, which faces the image side, is a convex aspheric surface. Theimage-side surface 414 has an inflection point thereon.

The second lens 420 has negative refractive power, and is made ofplastic. An object-side surface 422 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 424thereof, which faces the image side, is a concave aspheric surface. Theimage-side surface 424 has an inflection point.

The third lens 430 has positive refractive power, and is made ofplastic. An object-side surface 432, which faces the object side, is aconcave aspheric surface, and an image-side surface 434, which faces theimage side, is a convex aspheric surface.

The fourth lens 440 has negative refractive power, and is made ofplastic. An object-side surface 442, which faces the object side, is aconcave aspheric surface, and an image-side surface 444, which faces theimage side, is a convex aspheric surface. The object-side surface 442and the image-side surface 444 both have an inflection point.

The fifth lens 450 has negative refractive power, and is made ofplastic. An object-side surface 452 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 454thereof, which faces the image side, is a concave aspheric surface, andeach of them has an inflection point.

The infrared rays filter 470 is made of glass, and between the fifthlens 450 and the image plane 480. The infrared rays filter 470 gives nocontribution to the focal length of the system.

The optical image capturing system of the fourth preferred embodimenthas the following parameters, which are |f2|+|f3|+|f4|=203.9003 mm;|f1|+|f5|=22.2372 mm; and |f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focallength of the first lens 410; f2 is a focal length of the second lens420; f3 is a focal length of the third lens 430; f4 is a focal length ofthe fourth lens 440; and f5 is a focal length of the fifth lens 450.

The optical image capturing system of the fourth preferred embodimentfurther satisfies TP4=0.9894 mm and TP5=1.2227 mm, where TP4 is athickness of the fourth lens on the optical axis, and TP5 is a thicknessof the fifth lens on the optical axis.

In the fourth embodiment, the first and the third lenses 410, 430 arepositive lenses, and their focal lengths are f1 and f3 respectively. Theoptical image capturing system of the fourth preferred embodimentfurther satisfies ΣPP=f1+f3=9.5002 mm and f1/(f1+f3)=0.5894, where ΣPPis a sum of the focal lengths of each positive lens. It is helpful toshare the positive refractive power of the first lens 410 to the otherpositive lens to avoid the significant aberration caused by the incidentrays.

The optical image capturing system of the fourth preferred embodimentfurther satisfies ΣNP=f2+f4+f5=−216.6373 mm and f5/(f2+f4+f5)=0.4616,where f2, f4 and f5 are focal lengths of the second, the fourth and thefifth lenses 420, 440, 450, and ΣNP is a sum of the focal lengths ofeach negative lens. It is helpful to share the negative refractive powerof the fifth lens 450 to other negative lenses to avoid the significantaberration caused by the incident rays.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 3.01798 mm; f/HEP = 1.8; HAF = 50.0004 deg; tan(HAF) =1.1919 Focal Radius of Thickness Refractive length Surface curvature(mm) (mm) Material index Abbe number (mm) 0 Object plane infinity 11^(st) lens 3.75369 0.4562 plastic 1.65 21.4 5.59985 2 −157.435 0.1132793 Aperture plane −0.06648 4 2^(nd) lens 28.90376 0.320317 plastic 1.51456.8 −100 5 18.45196 0.201419 6 3^(rd) lens −31.8535 0.659507 plastic1.565 58 3.90033 7 −2.08265 0.205949 8 4^(th) lens −1.26402 0.989365plastic 1.607 26.6 −100 9 −1.67392 0.22823 10 5^(th) lens 2.37551.222658 plastic 1.65 21.4 −16.6373 11 1.55309 0.6 12 Filter plane 0.21.517 64.2 13 plane 0.195782 14 Image plane 0.096747 plane Referencewavelength: 555 nm

TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k =−8.042882 50 −50 −47.982794 50 −26.437942 A4 = 6.82441E−03 1.30006E−011.99202E−01 5.30446E−06 −9.18258E−02 −3.38060E−01 A6 = 5.97843E−022.24690E−01 −1.37348E−01 −1.93461E−01 2.72351E−01 3.40964E−01 A8 =−9.56620E−02 −1.34470E+00 −5.66653E−02 2.40029E−01 −1.23632E+00−2.61390E−01 A10 = 9.72689E−02 3.39344E+00 4.89504E−01 −8.80032E−022.19953E+00 −2.16524E−01 A12 = −5.24899E−02 −4.04253E+00 −8.06183E−01−4.32311E−01 −1.96382E+00 3.49961E−01 A14 = 1.21078E−02 1.93995E+005.17467E−01 4.28065E−01 5.82683E−01 −1.40299E−01 Surface 8 9 10 11 k0.13763 −0.321395 −37.255342 −6.398451 A4 5.12102E−02 −1.73098E−01−6.68346E−02 −2.17676E−02 A6 −1.99088E−01 2.26228E−01 1.16924E−022.88036E−03 A8 4.32664E−01 −1.85927E−01 −3.24423E−03 −2.62255E−04 A10−6.02790E−01 9.15231E−02 3.68664E−04 2.75067E−06 A12 3.21026E−01−2.53160E−02 −3.20460E−05 9.15856E−07 A14 −1.49719E−02 3.44062E−031.84028E−06 −4.79682E−08

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment (with 555 nm as the mainreference wavelength) based on Table 7 and Table 8 are listed in thefollowing table:

|TDT| 0.2212% InRS51 −0.6850 |ODT| 2.0284% InRS52 −0.8720 ΣPP 9.5002|InRS51|/TP5 −0.3890 ΣNP −216.6373 |InRS52|/TP5 0.0034 f1/ΣPP 0.5894HIF511 0.6487 f5/ΣNP 0.4616 HIF512 0.0056 IN12/f 0.0155 HIF521 5.5250HOS/f 1.7969 HIF522 0.8731 HOS 5.4230 HIF311 2.0611 InTL 4.3305 HIF3120.2334 HOS/HOI 1.4500 HIF321 0.5511 InS/HOS 0.8950 HIF322 0.3801InTL/HOS 0.7985 |f/f1| 0.5389 ΣTP/InTL 0.8424 |f/f2| 0.0302 (TP1 +IN12)/TP2 1.5703 |f/f3| 0.7738 (TP5 + IN45)/TP5 1.4665 |f/f4| 0.0302(TP2 + TP3 + TP4)/ΣTP 0.5398 |f/f5| 0.1814

The exact parameters related to inflection points of the secondembodiment (with main reference wavelength as 555 nm) based on Table 7and Table 8 are listed in the following table:

HIF121 0.06326 HIF121/HOI 0.01691 SGI121 −0.00001 |SGI121|/(|SGI121| +TP1) 0.00002 HIF211 0.32945 HIF211/HOI 0.08809 SGI211 0.00271|SGI211|/(|SGI211| + TP2) 0.00591 HIF212 0.85797 HIF212/HOI 0.22940SGI212 −0.02489 |SGI212|/(|SGI212| + TP2) 0.05174 HIF411 1.01806HIF411/HOI 0.27221 SGI411 −0.55195 |SGI411|/(|SGI411| + TP4) 0.54749HIF421 1.29897 HIF421/HOI 0.34732 SGI421 −0.68143 |SGI421|/(|SGI421| +TP4) 0.59899 HIF511 0.42332 HIF511/HOI 0.11319 SGI511 0.02850|SGI511|/(|SGI511| + TP5) 0.05880 HIF521 0.85509 HIF521/HOI 0.22863SGI521 0.16885 |SGI521|/(|SGI521| + TP5) 0.27014

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system ofthe fifth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 510,an aperture 500, a second lens 520, a third lens 530, a fourth lens 540,a fifth lens 550, an infrared rays filter 570, an image plane 580, andan image sensor 590.

The first lens 510 has positive refractive power, and is made ofplastic. An object-side surface 512 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 514thereof, which faces the image side, is a concave aspheric surface.

The second lens 520 has negative refractive power, and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a convex aspheric surface, and an image-side surface 524thereof, which faces the image side, is a concave aspheric surface. Theobject-side surface 522 and the image-side surface 524 both have aninflection point thereon.

The third lens 530 has positive refractive power, and is made ofplastic. An object-side surface 532, which faces the object side, is aconvex aspheric surface, and an image-side surface 534, which faces theimage side, is a convex aspheric surface. The object-side surface 532has an inflection point.

The fourth lens 540 has a negative refractive power, and is made ofplastic. An object-side surface 542, which faces the object side, is aconcave aspheric surface, and an image-side surface 544, which faces theimage side, is a convex aspheric surface. The image-side surface 544 hasan inflection point thereon.

The fifth lens 550 has negative refractive power, and is made ofplastic. An object-side surface 552, which faces the object side, is aconcave aspheric surface, and an image-side surface 554, which faces theimage side, thereof is a concave aspheric surface. The image-sidesurface 554 has an inflection point thereon.

The infrared rays filter 570 is made of glass, and between the fifthlens 550 and the image plane 580. The infrared rays filter 570 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fifth preferred embodiment are|f2|+|f3|+|f4|=108.0843 mm; |f1|+|f5|=8.2967 mm; and|f2|+|f3|+|f4|>|f1|+|f5|, where f1 is a focal length of the first lens510; f2 is a focal length of the second lens 520; f3 is a focal lengthof the third lens 530; and f4 is a focal length of the fourth lens 540;and f5 is a focal length of the fifth lens 550.

The optical image capturing system of the fifth preferred embodimentfurther satisfies TP4=0.5988 mm and TP5=0.3481 mm, where TP4 is athickness of the fourth lens 540 on the optical axis, and TP5 is athickness of the fifth lens 550 on the optical axis.

The optical image capturing system of the fifth preferred embodimentfurther satisfies ΣPP=f1+f3 =7.5999 mm and f1/(f1+f3)=0.7905, where ΣPPis a sum of the focal lengths of each positive lens. It is helpful toshare the positive refractive power of the first lens 510 to the otherpositive lens to avoid the significant aberration caused by the incidentrays.

The optical image capturing system of the fifth preferred embodimentfurther satisfies ΣNP=f2+f4+f5=−108.7810 mm; and f5/(f2+f4+f5)=0.0597,where ΣNP is a sum of the focal lengths of each negative lens. It ishelpful to share the negative refractive power of the fifth lens 550 toother negative lenses.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 3.06494 mm; f/HEP = 2.0; HAF = 50 deg; tan(HAF) = 1.1918Focal Radius of Thickness Refractive length Surface curvature (mm) (mm)Material index Abbe number (mm) 0 Object plane infinity 1 1^(st) lens3.66747 0.431952 plastic 1.632 23.4 6.00737 2 84.562 0.069027 3 Apertureplane −0.01908 4 2^(nd) lens 2.69269 0.2 plastic 1.607 23.4 −6.49171 51.55934 0.100242 6 3^(rd) lens 4.70055 2.25 plastic 1.565 58 1.59254 7−0.9237 0.05 8 4^(th) lens −1.04152 0.598757 plastic 1.65 21.4 −100 9−1.29923 0.585336 10 5^(th) lens −3.36408 0.348098 plastic 1.607 23.4−2.28928 11 2.49287 0.5 12 Filter plane 0.2 1.517 64.2 13 plane 0.18777614 Image plane 0.067146 plane Reference wavelength: 555 nm

TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k =−20.409862 −50 −25.275868 −10.360545 15.506475 −1.645885 A4 =8.72174E−02 1.82767E−01 −6.50662E−02 1.40014E−03 −3.72628E−026.80061E−02 A6 = 1.86456E−01 −3.08069E−01 2.56544E−01 −5.81609E−023.26572E−02 −5.70807E−02 A8 = −6.39583E−01 1.58756E+00 −9.80983E−011.80683E−01 1.28574E−01 8.54659E−03 A10 = 1.16587E+00 −4.39910E+001.51705E+00 −5.94848E−01 −4.63607E−01 1.64631E−03 A12 = −1.01280E+006.21485E+00 −1.09419E+00 7.61806E−01 4.88346E−01 −1.35234E−03 A14 =3.60468E−01 −3.31305E+00 2.97785E−01 −3.55213E−01 −1.85360E−012.38182E−04 Surface 8 9 10 11 k −1.405897 −0.666247 0.996858 −5.109491A4 −1.32198E−02 −4.25923E−03 1.02826E−02 −2.56356E−02 A6 5.70140E−031.40484E−02 −1.41432E−02 2.23066E−03 A8 −2.17676E−03 2.25448E−033.68819E−03 −1.30581E−04 A10 1.30469E−03 3.95482E−06 −5.04344E−04−6.10154E−07 A12 6.51734E−04 −4.82939E−05 1.09487E−04 −1.25194E−07 A14−3.69938E−04 −1.45207E−06 −2.43801E−05 −2.78538E−08

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment (with 555 nm as the mainreference wavelength) based on Table 9 and Table 10 are listed in thefollowing table:

|TDT| 1.2047% InRS51 −0.9424 |ODT| 1.7653% InRS52 −0.9303 ΣPP 7.5999|InRS51|/TP5 −1.0443 ΣNP −108.7810 |InRS52|/TP5 −0.4238 f1/ΣPP 0.7905HIF511 1.7413 f5/ΣNP 0.0597 HIF512 0.7067 IN12/f 0.0163 HIF521 3.3735HOS/f 1.8171 HIF522 0 HOS 5.5693 HIF311 1.7902 InTL 4.6143 HIF312 0HOS/HOI 1.4891 HIF321 0.4787 InS/HOS 0.9100 HIF322 0.3214 InTL/HOS0.8285 |f/f1| 0.5102 ΣTP/InTL 0.8298 |f/f2| 0.4721 (TP1 + IN12)/TP22.4095 |f/f3| 1.9246 (TP5 + IN45)/TP5 1.5590 |f/f4| 0.0306 (TP2 + TP3 +TP4)/ΣTP 0.7963 |f/f5| 1.3388

The exact parameters related to inflection points of the secondembodiment (with main reference wavelength as 555 nm) based on Table 9and Table 10 are listed in the following table:

HIF211 0.48874 HIF211/HOI 0.13068 SGI211 0.03546 |SGI211|/(|SGI211| +TP2) 0.07587 HIF221 0.59692 HIF221/HOI 0.15961 SGI221 0.08830|SGI221|/(|SGI221| + TP2) 0.16973 HIF311 0.88930 HIF311/HOI 0.23778SGI311 0.08594 |SGI311|/(|SGI311| + TP3) 0.16595 HIF421 1.24150HIF421/HOI 0.33195 SGI421 −0.59352 |SGI421|/(|SGI421| + TP4) 0.57878HIF521 0.90250 HIF521/HOI 0.24131 SGI521 0.12998 |SGI521|/(|SGI521| +TP5) 0.23131

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system ofthe sixth preferred embodiment of the present invention includes, alongan optical axis from an object side to an image side, a first lens 610,an aperture 600, a second lens 620, a third lens 630, a fourth lens 640,a fifth lens 650, an infrared rays filter 670, an image plane 680, andan image sensor 690.

The first lens 610 has positive refractive power, and is made ofplastic. An object-side surface 612, which faces the object side, is aconvex aspheric surface, and an image-side surface 614 thereof, whichfaces the image side, is a concave aspheric surface.

The second lens 620 has negative refractive power, and is made ofplastic. An object-side surface thereof, which faces the object side, isa convex aspheric surface, and an image-side surface thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 622 and the image-side surface 624 both has an inflection pointthereon.

The third lens 630 has positive refractive power, and is made ofplastic. An object-side surface 632, which faces the object side, is aconvex aspheric surface, and an image-side surface 634, which faces theimage side, is a convex aspheric surface. The object-side surface 632has an inflection point thereon.

The fourth lens 640 has negative refractive power, and is made ofplastic. An object-side surface 642, which faces the object side, is aconcave aspheric surface, and an image-side surface 644, which faces theimage side, is a convex aspheric surface. The object-side surface 642has an inflection point thereon.

The fifth lens 650 has negative refractive power, and is made ofplastic. An object-side surface 652, which faces the object side, is aconcave aspheric surface, and an image-side surface 654, which faces theimage side, thereof is a concave aspheric surface. The image-sidesurface 654 has an inflection point thereon.

The infrared rays filter 670 is made of glass, and between the fifthlens 650 and the image plane 680. The infrared rays filter 670 gives nocontribution to the focal length of the system.

The optical image capturing system of the sixth preferred embodiment hasthe following parameters, which are |f2|+|f3|+|f4|=201.6178 mm;|f1|+|f5|=8.4371 mm; and |f2|+|f3|+1f4|>|f1|+|f5|, where f1 is a focallength of the first lens 610; f2 is a focal length of the second lens620; f3 is a focal length of the third lens 630; f4 is a focal length ofthe fourth lens 640; and f5 is a focal length of the fifth lens 650.

The optical image capturing system of the sixth preferred embodimentfurther satisfies TP4=0.7356 mm and TP5=0.3985 mm, where TP4 is athickness of the fourth lens on the optical axis, and TP5 is a thicknessof the fifth lens on the optical axis.

In the sixth embodiment, the first and the third lenses 610, 630 arepositive lenses, and their focal lengths are f1 and f3 respectively. Theoptical image capturing system of the sixth preferred embodiment furthersatisfies ΣPP=f1+f3=8.0203 mm and f1/(f1+f3)=0.7983, where ΣPP is a sumof the focal lengths of each positive lens. It is helpful to share thepositive refractive power of the first lens 610 to the other positivelens to avoid the significant aberration caused by the incident rays.

The optical image capturing system of the sixth preferred embodimentfurther satisfies ΣNP=f2+f4+f5=−202.0346 mm and f5/(f2+f4+f5)=0.4950,where f2, f4 and f5 are focal lengths of the second, the fourth and thefifth lenses, and ΣNP is a sum of the focal lengths of each negativelens. It is helpful to share the negative refractive power of the fifthlens 650 to other negative lenses to avoid the significant aberrationcaused by the incident rays.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 2.97861 mm; f/HEP = 1.4; HAF = 50.0001 deg; tan(HAF) =1.1918 Focal Radius of Thickness Refractive length Surface curvature(mm) (mm) Material index Abbe number (mm) 0 Object plane infinity 11^(st) lens 2.3988 0.456243 plastic 1.565 58 6.40246 2 6.5902 0.08838 3Aperture plane 0.411254 4 2^(nd) lens 144.6516 0.349143 plastic 1.565 58−100 5 40.68654 0.084996 6 3^(rd) lens 24.44361 0.808138 plastic 1.58330.2 1.61783 7 −0.97508 0.05 8 4^(th) lens −0.85898 0.735623 plastic1.565 58 −100 9 −1.1424 0.685879 10 5^(th) lens −4.05486 0.39853 plastic1.65 21.4 −2.0346 11 2.06441 0.3 12 Filter plane 0.2 1.517 64.2 13 plane0.203492 14 Image plane 0.160725 plane Reference wavelength: 555 nm. Theclear aperture of the first surface is 1.22 mm; the clear aperture ofthe sixth surface is 1.03 mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k =−21.439717 −1.976571 50 7.326364 47.916247 −2.428818 A4 = 1.48662E−018.76887E−03 −1.52157E−01 −2.00834E−01 −2.41634E−01 −2.12630E−02 A6 =−7.96597E−02 6.85471E−02 2.42208E−01 2.68748E−02 2.13077E−01 6.92905E−02A8 = −1.58109E−02 −2.96673E−01 −4.66625E−01 3.06661E−02 −4.51221E−01−4.92997E−02 A10 = 7.81152E−02 5.44324E−01 2.82724E−01 −2.44715E−013.10208E−01 −2.32974E−02 A12 = −4.98017E−02 −4.52039E−01 5.24873E−022.50479E−01 −3.36706E−02 3.25165E−02 A14 = 1.00061E−02 1.38629E−01−1.42016E−01 −9.17983E−02 −2.81886E−02 −1.01056E−02 Surface 8 9 10 11 k−1.394704 −3.03247 −39.215327 −17.127864 A4 2.18458E−01 −1.62687E−02−1.21846E−01 −2.08246E−02 A6 −1.66227E−02 −9.55726E−03 5.40811E−02−1.91521E−04 A8 −3.17545E−02 1.15509E−02 −3.24253E−02 1.61481E−04 A101.19463E−04 −9.11869E−03 2.40979E−03 −2.19374E−06 A12 9.03458E−034.52160E−03 3.49318E−03 −1.72409E−06 A14 −2.85089E−03 −8.94094E−04−8.19111E−04 8.06517E−08

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment based on Table 11 and Table12 are listed in the following table:

|TDT| 1.4440% InRS51 −0.5252 |ODT| 2.0614% InRS52 −0.9300 ΣPP 8.0203|InRS51|/TP5 −1.1956 ΣNP −202.0346 |InRS52|/TP5 −0.4795 f1/ΣPP 0.7983HIF511 1.9937 f6/ΣNP 0.4950 HIF521 0.7996 IN12/f 0.1677 HIF522 3.0991HOS/f 1.6559 HIF523 0 HOS 4.9324 HIF311 1.4260 InTL 4.0682 HIF312 0HOS/HOI 1.3188 HIF321 0.3813 InS/HOS 0.8896 HIF322 0.2891 InTL/HOS0.8248 |f/f1| 0.4652 ΣTP/InTL 0.6754 |f/f2| 0.0298 (TP1 + IN12)/TP22.7378 |f/f3| 1.8411 (TP5 + IN45)/TP4 1.4741 |f/f4| 0.0298 (TP2 + TP3 +TP4)/ΣTP 0.6889 |f/f5| 1.4640

The exact parameters related to inflection points of the secondembodiment (with main reference wavelength as 555 nm) based on Table 11and Table 12 are listed in the following table:

HIF211 0.06201 HIF211/HOI 0.01658 SGI211 0.00001 |SGI211|/(|SGI211| +TP2) 0.00002 HIF221 0.10119 HIF221/HOI 0.02706 SGI221 0.00010|SGI221|/(|SGI221| + TP2) 0.00023 HIF311 0.12076 HIF311/HOI 0.03229SGI311 0.00025 |SGI311|/(|SGI311| + TP3) 0.00054 HIF411 0.63436HIF411/HOI 0.16961 SGI411 −0.18934 |SGI411|/(|SGI411| + TP4) 0.29328HIF412 1.15844 HIF412/HOI 0.30974 SGI412 −0.39491 |SGI412|/(|SGI412| +TP4) 0.46397 HIF521 0.66495 HIF521/HOI 0.17779 SGI521 0.07720|SGI521|/(|SGI521| + TP5) 0.14472

It must be pointed out that the embodiments described above are onlysome preferred embodiments of the present invention. All equivalentstructures which employ the concepts disclosed in this specification andthe appended claims should fall within the scope of the presentinvention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having positive refractive power; a second lens havingrefractive power; a third lens having refractive power; a fourth lenshaving refractive power; a fifth lens having refractive power; and animage plane; wherein the optical image capturing system consists of thefive lenses with refractive power; at least two of the five lenses eachhas at least an inflection point on at least a surface thereof; at leastone of the lenses from the second lens to the fifth lens has positiverefractive power; the fifth lens has an object-side surface, which facesthe object side, and an image-side surface, which faces the image side,and both the object-side surface and the image-side surface of the fifthlens are aspheric surfaces; wherein the optical image capturing systemsatisfies:1.2≦f/HEP≦3.0; and0.5≦HOS/f≦3.0; where f1, f2, f3, f4, and f5 are focal lengths of thefirst lens to the fifth lens, respectively; f is a focal length of theoptical image capturing system; HEP is an entrance pupil diameter of theoptical image capturing system; and HOS is a distance in parallel withthe optical axis from an object-side surface of the first lens to theimage plane.
 2. The optical image capturing system of claim 1, whereinthe optical image capturing system further satisfies:0 deg<HAF≦70 deg;|TDT|<60%; and|ODT|<50%; where HAF is a half of a view angle of the optical imagecapturing system; TDT is a TV distortion; and ODT is an opticaldistortion.
 3. The optical image capturing system of claim 1, whereinthe fifth lens has at least an inflection point on at least one of thesurfaces thereof.
 4. The optical image capturing system of claim 1,wherein the optical image capturing system further satisfies:0 mm<HIF≦5 mm; where HIF is a distance perpendicular to the optical axisbetween any inflection point and the optical axis.
 5. The optical imagecapturing system of claim 4, wherein the optical image capturing systemfurther satisfies:0<HIF/InTL≦5; where InTL is a distance in parallel with the optical axisbetween the object-side surface of the first lens and the image-sidesurface of the fifth lens.
 6. The optical image capturing system ofclaim 4, wherein the optical image capturing system further satisfies:0 mm<SGI≦1 mm; where SGI is a displacement in parallel with the opticalaxis from a point on a surface of the lens, through which the opticalaxis passes, to the inflection point on the surface.
 7. The opticalimage capturing system of claim 1, wherein the second lens has negativerefractive power, and the fifth lens has negative refractive power. 8.The optical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:0.6≦InTL/HOS≦0.9; where InTL is a distance in parallel with the opticalaxis between the object-side surface of the first lens and theimage-side surface of the fifth lens.
 9. The optical image capturingsystem of claim 5, further comprising an aperture and an image sensor onthe image plane, wherein the optical image capturing system furthersatisfies:0.5≦InS/HOS≦1.1; and0<HIF/HOI≦0.9; where InS is a distance in parallel with the optical axisbetween the aperture and the image plane; and HOI is a height for animage formation of the optical image capturing system.
 10. An opticalimage capturing system, in order along an optical axis from an objectside to an image side, comprising: a first lens having positiverefractive power; a second lens having refractive power; a third lenshaving refractive power; a fourth lens having refractive power; a fifthlens having negative refractive power; and an image plane; wherein theoptical image capturing system consists of the five lenses withrefractive power; at least two of the five lenses each has at least aninflection point on at least a surface thereof; at least one of thelenses from the second lens to the fourth lens has positive refractivepower; the fifth lens has an object-side surface, which faces the objectside, and an image-side surface, which faces the image side, and boththe object-side surface and the image-side surface of the fifth lens areaspheric surfaces; wherein the optical image capturing system satisfies:1.2≦f/HEP≦3.0;0.5≦HOS/f≦3.0;0.4≦|tan(HAF)|≦3.0;|TDT|<60%; and|ODT|≦50%; where f1, f2, f3, f4, and f5 are focal lengths of the firstlens to the fifth lens, respectively; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HOS is a distance in parallel with the opticalaxis between an object-side surface, which face the object side, of thefirst lens and the image plane; HAF is a half of a view angle of theoptical image capturing system; TDT is a TV distortion; and ODT is anoptical distortion.
 11. The optical image capturing system of claim 10,wherein at least one of the surfaces of the fourth lens has at least aninflection point thereon.
 12. The optical image capturing system ofclaim 10, wherein at least one of the surfaces of the fifth lens has atleast one inflection point thereon.
 13. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:0 mm<HOS≦7 mm.
 14. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:0 mm<InTL≦6 mm; where InTL is a distance in parallel with the opticalaxis between the object-side surface of the first lens and theimage-side surface of the fifth lens.
 15. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:0 mm<ΣTP≦5 mm; where ΣTP is a sum of central thicknesses of the lenses,which have refractive power, on the optical axis.
 16. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0<SGI521/(TP5+SGI521)≦0.8; where SGI521 is a displacement in parallelwith the optical axis from a point on the image-side surface of thefifth lens, through which the optical axis passes, to the inflectionpoint, which is the closest to the optical axis, on the image-sidesurface of the fifth lens; and TP5 is a thickness of the fifth lens onthe optical axis.
 17. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:0<IN12/f≦0.2; where IN12 is a distance on the optical axis between thefirst lens and the second lens.
 18. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:0.01≦f1/(f1+f3)≦0.9.
 19. The optical image capturing system of claim 10,wherein the optical image capturing system further satisfies:0<|f/f1|≦2;0<|f/f2|≦2;0<|f/f3|≦3;0<|f/f4|≦3; and0<|f/f5|≦3.
 20. An optical image capturing system, in order along anoptical axis from an object side to an image side, comprising: a firstlens having positive refractive power; a second lens having refractivepower; a third lens having refractive power; a fourth lens havingnegative refractive power; a fifth lens having negative refractivepower, and having at least an inflection point on an image-side surface,which faces the image side, and an object-side surface, which faces theobject side, respectively, wherein at least one surface between theimage-side surface and the object-side surface thereof has at least aninflection point; and an image plane; wherein the optical imagecapturing system consists of the five lenses having refractive power;the object-side surface and the image-side surface of the fifth lens areaspheric surfaces; at least one lens between the third lens and thefourth lens has at least one inflection point on at least one of thesurfaces thereof; wherein the optical image capturing system satisfies:1.2≦f/HEP≦2.8;0.4≦|tan(HAF)|≦3.0;0.5<HOS/f≦3.0;|TDT|<60%; and|ODT|≦50%; where f1, f2, f3, f4, and f5 are focal lengths of the firstlens to the fifth lens, respectively; f is a focal length of the opticalimage capturing system; HEP is an entrance pupil diameter of the opticalimage capturing system; HAF is a half of a view angle of the opticalimage capturing system; HOS is a distance in parallel with the opticalaxis between an object-side surface, which face the object side, of thefirst lens and the image plane; TDT is a TV distortion; and ODT is anoptical distortion.
 21. The optical image capturing system of claim 20,wherein the optical image capturing system further satisfies:0 mm<HIF≦5 mm; where HIF is a distance perpendicular to the optical axisbetween the inflection points and the optical axis.
 22. The opticalimage capturing system of claim 20, wherein the optical image capturingsystem further satisfies:0.6≦InTL/HOS≦0.9; where InTL is a distance in parallel with the opticalaxis between the object-side surface of the first lens and theimage-side surface of the fifth lens.
 23. The optical image capturingsystem of claim 20, wherein the fifth lens has at least an inflectionpoint on each surface thereof; and the optical image capturing systemfurther satisfies:0.01≦f1/(f1+f3)≦0.9; and0.01≦f5/(f2+f4+f5)≦0.95.
 24. The optical image capturing system of claim23, wherein the optical image capturing system further satisfies:0.45<ΣTP/InTL≦0.95; where ΣTP is a sum of central thicknesses of thelenses, which have refractive power, on the optical axis; and InTL is adistance between the object-side surface of the first lens and theimage-side surface of the fifth lens.
 25. The optical image capturingsystem of claim 23, further comprising an aperture and an image sensoron the image plane, wherein the optical image capturing system furthersatisfies:0.5≦InS/HOS≦1.1; where InS is a distance in parallel with the opticalaxis between the aperture and the image plane.